Internal Window adjacent

grasshopper honeybee-legacy
1

Hi，everyone
When I use the honeybee to do the daylighting simulation I find some troubles in the Internal Window Adjacent . Could you tell me how to solve it .

Thank for your in advance.

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2

What is exactly the error? In daylight simulation you only need one surface for the interior glass.

3

Thanks for your responding . When I let the blind’s angle 90° , the DA is not 0% .I think is wrong . When I delete the cavity ,the outcome is right . So I think there is some error in my internal window adjacent. Please tell me
how I can solve it .